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http://hdl.handle.net/2445/185476
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DC Field | Value | Language |
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dc.contributor.author | LHCb collaboration | - |
dc.contributor.author | Alfonso Albero, Alejandro | - |
dc.contributor.author | Garcia Moreno, P. | - |
dc.contributor.author | Garrido Beltrán, Lluís | - |
dc.contributor.author | Gironella Gironell, P. | - |
dc.contributor.author | Gomez Fernandez, S. | - |
dc.contributor.author | Graugés Pous, Eugeni | - |
dc.contributor.author | Lobo Salvia, A. | - |
dc.contributor.author | Marin Benito, Carla | - |
dc.contributor.author | Mauricio, J. | - |
dc.contributor.author | Vazquez Gomez, R. | - |
dc.date.accessioned | 2022-05-10T14:21:46Z | - |
dc.date.available | 2022-05-10T14:21:46Z | - |
dc.date.issued | 2021 | - |
dc.identifier.issn | 1126-6708 | - |
dc.identifier.uri | http://hdl.handle.net/2445/185476 | - |
dc.description.abstract | A search for the doubly charmed baryon Ξ+ cc is performed in the Ξ+ c π −π + invariant-mass spectrum, where the Ξ+ c baryon is reconstructed in the pK−π + final state. The study uses proton-proton collision data collected with the LHCb detector at a centreof-mass energy of 13 TeV, corresponding to a total integrated luminosity of 5.4 fb−1 . No significant signal is observed in the invariant-mass range of 3.4-3.8 GeV/c 2 . Upper limits are set on the ratio of branching fractions multiplied by the production cross-section with respect to the Ξ++ cc → (Ξ+ c → pK−π +)π + decay for different Ξ+ cc mass and lifetime hypotheses in the rapidity range from 2.0 to 4.5 and the transverse momentum range from 2.5 to 25 GeV/c. The results from this search are combined with a previously published search for the Ξ+ cc → Λ + c K−π + decay mode, yielding a maximum local significance of 4.0 standard deviations around the mass of 3620 MeV/c 2 , including systematic uncertainties. Taking into account the look-elsewhere effect in the 3.5-3.7 GeV/c 2 mass window, the combined global significance is 2.9 standard deviations including systematic uncertainties. | - |
dc.format.extent | 27 p. | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | eng | - |
dc.publisher | Springer Verlag | - |
dc.relation.isformatof | Reproducció del document publicat a: https://doi.org/10.1007/JHEP12(2021)107 | - |
dc.relation.ispartof | Journal of High Energy Physics, 2021, vol. 16, num. 2021, p. 1-27 | - |
dc.relation.uri | https://doi.org/10.1007/JHEP12(2021)107 | - |
dc.rights | cc-by (c) LHCb collaboration et al., 2021 | - |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | - |
dc.source | Articles publicats en revistes (Física Quàntica i Astrofísica) | - |
dc.subject.classification | Hadrons | - |
dc.subject.classification | Gran Col·lisionador d'Hadrons | - |
dc.subject.classification | Física de partícules | - |
dc.subject.classification | Experiments | - |
dc.subject.other | Hadrons | - |
dc.subject.other | Large Hadron Collider (France and Switzerland) | - |
dc.subject.other | Particle physics | - |
dc.subject.other | Experiments | - |
dc.title | Search for the doubly charmed baryon Ξ+cc in the Ξ+cπ−π+ final state | - |
dc.type | info:eu-repo/semantics/article | - |
dc.type | info:eu-repo/semantics/publishedVersion | - |
dc.identifier.idgrec | 721064 | - |
dc.date.updated | 2022-05-10T14:21:47Z | - |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | - |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
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721064.pdf | 1.14 MB | Adobe PDF | View/Open |
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